Screw-lock for eyeglasses.



No. 776,818. PATENTED DEC. 6, 1904. A. M. WARD. SCREW LOOK FOREYEGLASSES.

APPLICATION FILED JUNE 4, 1904.

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@unzutur UNITED STATES ALBERT M. W'ARD, OF DETROIT, MICHIGAN, ASSIGNORPatented December 6, 190% o eEoEeE JOHNSTON, OF DETROIT, MTCHIGAN.

SCREW-LOCK FOR EYEGLASSES.

SPECIFICATION forming part of LettersPatent No. 776,818, dated December6, 1904. Application filed June 4, 1904. Serial No. 211,15 '7. (N0model.)

To all whmn it may concern:

Be it known that I, ALBERT M. WARD, a citizen of the United States,residing at Detroit, county of Wayne, State of Michigan, have invented acertain new and useful Improvement in Screw-Locks for Eyeglasses, ofwhich the following is a specification, reference being had to theaccompanying drawings, which form a part of this specification.

My invention is designed to provide a novel screw-lock for eyeglasses,my invention having for its object to prevent the stud-screws, wherebythe spring and guards of eyeglasses are held in place, from workingloose, said screws being held rigidly in place, so that the parts willbe held from wabbling.

My invention is also designed to provide a stud-screw lock which shallbe neat and attractive in appearance and. simple and economical inconstruction, as well as of superior utility.

To these ends my invention consists of the construction, combination,and arrangement of devices hereinafter described and claimed, andillustrated in the accompanying drawings, in which- Figure 1 is a viewin elevation of a pair of eyeglasses to which my invention is applied.Fig. 2 is a detail view of the attaching-post in plan. Fig. 3 is adetail view in elevation, showing my invention on an enlarged scale.Fig. 4 is also a detail view in side elevation. Fig. 5 is also a detailview in section longitudinally through the post and screw-lock. Fig. 6is a view in perspective, illustrating my invention. Fig. 7 is a view insection at right angles to that illustrated in Fig. 5. Fig. 8 is adetail View of the blank from which certain parts are constructed.

More particularly, my invention is designed as an improvement upon thescrew-lock embodied in anapplication filed by me February 1, 1904,Serial No. 191,517.

Heretofore, as pointed out in my application above referred to and as iswell understood, there has been a tendency for the spring and nose-guardto loosen the screw by which the spring and guards are attached to thestud or post engaged upon the eyeglasses.

In the drawings, (t represents the spring connecting the eyeglasses, and5 6 denote the studs mounted upon the eyeglasses and upon the inner endsof which the'extremities of the spring a are attached. The nose-guardsare indicated at c c and may be of any desired construction, thesupporting-arm of the noseguard being also seen red upon thecorresponding attaching-post 7).

My present invention has reference particularly to the construction ofthe attachingposts L, my invention having reference more especially alsoto the particular construction 01 the ends of said posts whereupon thecor responding nose-guard and the adjacent extremity of the spring aresecured. Accordingly l mount upon the inner end of each attaching-post abox or inclosure ti, formed, essentially, of two sides and a base, asshown, and from which and preferably from the base of which project twospring-arms a c, said arms being bent over and carrying a yieldingwasher f, the washer projecting into the outer end of the box, as shown.The box is open at the top and bottom to receive the adjacentextremities of the corresponding guard and spring, a screw 7 passedthrough the washer and into the post through the nose-guard and springholding the parts in place. The end of the spring enters the box betweenthe spring-arms e a, the washer being perforated, as indicated at it, toreceive the attaching stud or screw g. By forming the springs e e asshown, leading from the base of the box at opposite sides thereof upwardand over, so as to carry the washer into the outer end of the box,provision is effectually made by the bent portions of the arms toeffectually brace the spring, so that it cannot move in any manner whensecured in place. I prefer that the washer-arms a shall also be bentlaterally, as shown, to give ample room for the' entrance of the springinto place. It will be seen thus that the spring a is not only held bythe screw g, but is also held by contacting with the looped portion ofthe arms above the attaching-screw, so that the spring really is engagedat various points, the washer j in tervening between the head 01' thescrew and the adjacent part. I have shown underneath the Washer firstthe arm of the nose-guard and then the extremity of the spring; butI donot limit myself solely to this special arrangement of the spring-armand the noseguard; but this construction by which I am enabled to holdthe spring from lateral movement by having its edges contacting with thelooped arms 6 0 at a little distance from the attaching-screw is afeature of considerable importance in holding the spring rigidly andimmovably in place.

The box (Z, with the yielding arms 0 e and washer it, may be constructedof a single piece of sheet metal and secured in any suitable manner uponthe end of the post, as by soldering the same thereupon.

The blank formed from sheet metal from which the box, the washer, andthe connectingarms are constructed is indicated in Fig. 8.

I do not limit myself to connecting the arms with a base to the box; butsuch a construction gives a longer loop, allowing more freedom ofmovement to the washer.

hat I claim as my invention is 1. A screw-lock for eyeglasses providedwith a connectingspring, comprising in combination an attaching stud orpost having a washer connected therewith by two intervening yieldingarms forming a loop therebetween, and arranged on opposite sides of thespring.

2. A screw-lock for eyeglasses, comprising in combination anattaching-stud having a washer connected therewith by two interveningoppositely-arranged yielding arms forming a loop therebetween, and thewasher at the. end thereof opposite said stud being free.

3. A screw-lock for eyeglasses provided with a connecting-springcomprising in combination an attaching stud or post having a washerconnected therewith by two intervening yielding arms, said armsoppositely arranged and forming a loop therebetween.

4:. A screw-lock for eyeglasses, comprising an attaching stud or posthaving a box at its free extremity formed with two sides and a base andopen at the two ends thereof, and a washer connected therewith by twointervening yielding arms projecting from the base of the box and bentover to carry the washer into the outer end of the box, said armsforming a loop therebetween.

5. A screw-lock for eyeglasses provided with a connecting-spring,comprising an attaching stud or post having a washer connected therewithby intervening looped yielding arms oppositely arranged, the extremityof the spring passed between said yielding arms.

6. A screw-lock for eyeglasses provided with a connecting-spring,comprising an attachingstud provided with a box at its outer end havinga washer connected therewith by intervening yielding arms, said armsprojecting from the opposite sides of the post of the box and bentforward to carry the washer into the open end of the box, the springpassed between the looped arms and having its edges contacting onopposite sides with the corre-. sponding arms, said arms formingbearings on opposite edges of the spring.

7. In combination a recessed attaching stud or post for eyeglasseshaving a washer located in the recess of the post and connected with thepost by intervening yielding arms, a spring engaged in the recess of thepost between said arms, a nose-guard secured in the recessed post, and ascrew passed through said washer and the adjacent extremities of thenose-guard and the spring into the post to secure the spring and noseguard upon the post.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ALBERT M. XVARD. Witnesses:

N. S. XVRIGHT, M. L. SIMMONS.

